Salamence is still a threat without a stat boost. You're acting as if it's a completely useless Pokemon without Dragon Dance. Yes, the DD Mence sets are extremely threatening, but they're not the only things that Mence can do well. And it's not only that Salamence can run wreck a large part of most -- if not all -- teams, it's that it can do it with a huge variety of sets. You could even say that Salamence is so dangerous because of all the sets it has, and all the moves it can use. It's ridiculous to say that Salamence can't be a threat without Dragon Dance.
Weavile? Sure, Weavile can revenge Mence, but are you going to stick a Weavile on your team for the sole purpose of forcing Mence out? And Metagross? EQ and Fire Blast. "We're" not trying to say that Mence is a godly Pokemon that cannot ever be stopped, etc. etc. We're just trying to say that Salamence deserves to be banned from the OU Metagame.
So your saying because a pokemon is versitile that is should be banned from OU? Blissey has a LARGE movepool and I don't hear you saying it should be banned. Same with the other Psedo-legends. Now Mence isn't THE BIGGEST THREAT in the OU meta-game without a stat boost. Metagross can be a big threat without a stat boost as well. I'm pretty sure when you see a Gross, or a Mence, you'll say the exact same thing...Oh shit